Equisetum aquaticum Hoppe Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Polypodiopsida order Equisetales family Equisetaceae genus Equisetum species Equisetum fluviatile Name Homonyms Equisetum aquaticum Noronha Equisetum aquaticum Hoppe ex Milde Equisetum aquaticum Hoppe